Economics.

Market Economy- A market economy is economy based on the power of division of labor in which the prices of goods and services are determined in a free price system set by supply and demand. Also it is where there is buying and selling with little interference. Adam Smith was very important to the market economy. He believed in the invisible hand which is the term economists use to describe the self-regulating nature of the marketplace. Adam Smith published one of the most influential works on economics.

Command Economy- A command economy is an economic system controlled by strong, centralized government, which usually focuses on industrial goods. With little attention paid to agriculture and consumer goods. The government makes all the decisions. Karl Marx wanted the world to be ran by a command economy. Also Marx’s ideal economic system would involve exchanges of equal value for equal value, where value is determined by the amount of work put into whatever is being produced. He brought a lot of insight to people about the command economy.

Mixed Economy- A mixed economy is the most common form of national economic organization, somewhere between a command economy and a market economy. The degree of government intervention is the basis of most political division in countries using this system. It is where public and private sectors exist side by side. Keynes is known for starting the field of what became known as Keynesian economics. He thought it would be beneficial for the government to use fiscal and monetary measures to mitigate the negative impact of economic recessions, depressions and booms. Keynesian economics is often seen as the opposite of laissez-faire economics.

G.D.P. otherwise known as Gross Domestic Product is the measure of the economic production of a particular territory in financial capital terms over a specific time period. Also it is typically over the measure of a year. How much GDP grows from one period to the next is an indication of a country's economic health. There are many different ways of finding G.D.P. but they all give you the same answer. The major components are personal consumption (C), gross private domestic investment (I), government purchases (G), and net exports (X-M); they form the familiar identity of: GDP = C + I + G + X - M.

Supply and demand is the economic theory of market value where price is determined by the interaction of sellers and buyers to reach an equilibrium price which both are willing to accept. The companies have to supply the consumers with enough product to keep them satisfied but they themselves can’t produce to much where they would in return lose money. If a lot of people want a product more will be provided, and for less popularity less will be provided. A demand curve is a graph depicting the relationship between the price of a certain commodity, and the amount of it that consumers are willing and able to purchase at that given price. A supply curve is also a graph that shows the relationship of how much supply is needed to provide the customers with satisfaction.

Life Science.

Tamarisk and Russian Olive

Both the Tamarisk and Russian Olive are invasive species. They have a lot of damage to native plants as well as some good. They are very similar, but these two plants also have their differences. I think it’s important for people to have the knowledge about each of these so I’m going to talk about some facts.

The Tamarisk originated in Asia. It was brought here around the 1930’s to control erosion. Obviously, no one knew the long-term effects it would cause such as making the soil salty. One good thing about this large tree is that it provides shade near riverbanks in hot places. It is truly a menace.

The Russian Olive is native to Eurasia. That is very far from the places they are found today. People liked this plant because it attracted birds and looked nice as a decoration. This plant provided food for birds and could control dust and soil, and was also planted as a windbreak. The Russian Olive is extremely hard to walk through because of its long thorns.

Finally, these plants have many similarities. Both provide a habitat. They use a great amount of h20, their roots are huge. They are invasive and crowding out all of the native species is very common. To get rid of them you can use chemicals, animals such as beetles, and machines to pull them straight out of the ground.

To conclude, both of these plants spread rapidly and are causing enough harm to be considered invasive. We need to work hard to get rid of them and learn about them so that we can prevent any further damages.